Okay, not that I don't believe Mike, but could you do an experiment and publish the findings of your research to the paintball community. I have a friend who does not believe that the pressure could set off your tank like a molotov cocktail.

It's science, isn't it? How does your friend not believe that high pressure can cause combustion if a combustible material is present. I think a lot of paintballers take the pressure lightly because it's something they use on a daily basis. My full 4500psi tank actually scares me. That is A LOT of pressure, theoretically isn't it over 300,000 pounds of pressure in a 68ci? I'm not great with conversions.

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When there is Pressures THAT high there is heat... When there is heat there is fire... When there is oil and fire there is BOOM!!! thats to put it simply....

well, it's not the pressure BEING that high that causes heat. There's no more than ambient heat in your tank when it's full. The issue comes in when you fill the tank. Increasing the pressure increases the temperature. So, the possibility for explosion happens at the moment that it's being filled.

Diesels run at what, 25:1 maybe? Without considering the octane (or cetane, resistance to detonation at any rate) number of gun oil, tanks are compressed to (4500/15) 300:1. Seems reasonable to me to expect the combination of heat and pressure could cause an explosion, especially if the oil was just aerosolized via the fill nipple.

When there is Pressures THAT high there is heat... When there is heat there is fire... When there is oil and fire there is BOOM!!! thats to put it simply....

well, it's not the pressure BEING that high that causes heat. There's no more than ambient heat in your tank when it's full. The issue comes in when you fill the tank. Increasing the pressure increases the temperature. So, the possibility for explosion happens at the moment that it's being filled.

The combustion will occur once the product of heat and pressure exceed a limit. In other words you could ignite the oil even if it was reasonably cold.... so long as the pressure was high enough.

Oil between tank and marker might only be pressurized to 800psi, but that's more then enough pressure at room temperature to ignite some lubricants.

The combustion will occur once the product of heat and pressure exceed a limit. In other words you could ignite the oil even if it was reasonably cold.... so long as the pressure was high enough.

Oil between tank and marker might only be pressurized to 800psi, but that's more then enough pressure at room temperature to ignite some lubricants.

I want to be clear here - we're not talking about any danger of a gun going off. We've been using paintball guns for going on 20 years with oil - and it's never been a problem. the 800-ish operating pressure of even the higher-pressure guns aren't a danger. 4500 psi tanks are what we're talking about here.

The combustion will occur once the product of heat and pressure exceed a limit. In other words you could ignite the oil even if it was reasonably cold.... so long as the pressure was high enough.

Oil between tank and marker might only be pressurized to 800psi, but that's more then enough pressure at room temperature to ignite some lubricants.

I want to be clear here - we're not talking about any danger of a gun going off. We've been using paintball guns for going on 20 years with oil - and it's never been a problem. the 800-ish operating pressure of even the higher-pressure guns aren't a danger. 4500 psi tanks are what we're talking about here.

Sorry if it sounded like I was saying a marker would catastrophically explode if lubed incorrectly. Markers are designed well enough that the worst anyone has to worry about is a leaky seal.

I was just trying to say high pressure is enough to cause ignition without additional heat. And some 'oils' have low enough flash points they can ignite at room temperature when pressurized with an oxidizer to 'as little as' 800psi.

800PSI is definitely enough to cause something like sewing machine oil to ignite. Also, ignite isn't detonate. Just because the oil is burning doesn't mean there will be a detonation/explosion.

I could place a couple drops of sewing machine oil in the filter of my old Spyder Compact and watch my HPA guage slowly rise as the oil first evaporates then burns. Not recommended..just saying.